. >>> in egypt, cairo's tahrir square is a tinderbox as protests against president morsi continue to grow. more than 200,000 people jammed the square to demonstrate against morsi's brazen power grab. tensions are growing across egypt, and alex marquadt reports now from cairo. >> reporter: the birthplace of egypt's revolution once again ringing with calls for the downfall of a dictator. this time it's for this man, president mohamed morsi, whom america relies on to be a regional peace broker. last week he granted himself unchecked power, leading to today's bloody clashes. the crowd is chanting the same chants we heard two years ago during the revolution, except that they have substituted mubarak for morsi. egyptians toppled president hosni mubarak, a dictator who ruled for three decades. they then held a historic election, voted in the new president, and now -- >> he's like a pharoah. >> reporter: morsi's office says the move is just temporary, to sideline remnants of the mubarak era and put egypt on the right track. the wise voices say it is far from clear who will win the showdown.